Medtronic plc said Monday that it has expanded its limited site release of its new radial artery access portfolio. Acquired from Rist Neurovascular Inc. last year, the portfolio includes the Rist 079 Radial Access guide catheter and Rist Radial Access selective catheter. Dublin-based Medtronic completed its acquisition of privately held Rist Neurovascular in August 2020 for an undisclosed sum – the eighth in a series of tuck-in deals the med-tech behemoth has undertaken since January 2020.